I agree with all comments here. It's a very nice picture, wonderful sky and light, yes and smoke from volcano need a bit of tapering in the lower part... it seems a bit strange even if it can be possible.

Yes, the tapering is good when the eruption first starts; however, beyond that point, the clouds of smoke and ash tend to spill over the top and up into the air. So, I guess maybe it would look good either way.

The church was modeled using Blender. I kept it very low poly since it is so far away. Does it need a steeple or a Cross?

I also added some distant fog, which seems to work well. Since there is not much more to add save a path or road to the church, I am going to try something from a photo. This will require a lot of masking.

The church was modeled using Blender. I kept it very low poly since it is so far away. Does it need a steeple or a Cross?

I also added some distant fog, which seems to work well. Since there is not much more to add save a path or road to the church, I am going to try something from a photo. This will require a lot of masking.

I believe the update looks very good. The church should have a steeple and a cross. A path to the church is a good idea.

I agree, the church model needs at least a steeple or point; it looks oddly cut-off now.

This is a beautiful scene, it's just still missing something that says uniquely "Iceland" to me. The terrain in the distance helps with that, but the hazy golden light is not so typical there in my experience and understanding, and I'm also not sure about the specific foreground vegetation. If it were me I'd try making the sky a bit more blue and then maybe add some rocks in the foreground with moss on them for visual interest and Icelandic-feel.

I'll try lowering the glow in the fog. I am also thinking of moving the church to slightly higher ground and flooding the low areas. I agree that the plants, other than the grass, needs to be cut back.